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摘要
申请公布号
JP2775074(B2)
申请公布日期
1998.07.09
申请号
JP19900203483
申请日期
1990.07.31
申请人
发明人
分类号
A01G1/00;E02D17/20;(IPC1-7):E02D17/20
主分类号
A01G1/00
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